Wrought-metal radiator.



Patented Nov. I2, I90I. F. A. WILMT.

WBOUGHT METAL RADIATOR.

(Application med Apr.' 1o, 1899.)

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No. 686,570. Patented Nov. I2, |901.

F. A. WILMOT. WROUGHT METAL RADIATOR.

(Application filed Apr. 10, 1899.) (No Model.)

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UNITED STATE-s PATENT Orrrcn.

FRANK WILMOT, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE AMERICAN TUBE AND STAMPING COMPANY, INCORPORATED, OF

BRIDGEPORT, CONNECTICUT.

WROUG HT-*M ETL RADIATOR.

SPECIFICATION forming part of Letters Patent No. 686,570, dated November 12, 1901. Application filed April 10, 1899. Serial No. 712,461. (No model.)

To a/ZZ whom t may coi/werfe.-

Be itknown that I, FRANK A.WILMOT, a'citizen of the United States, residing at Bridgeport, county of Fairfield, State of Connecticut, have invented a new and useful Wrought- Metal Radiator, of which the following is a specification. v v

My invention relatesto the type of radiators illustrated and claimed in Letters Patent Nos. 634,317 and 634,318, granted to me October 3, 1899, and has for its object to overcome certain mechanical diiiiculties in the production of wrought-metal radiators as specifically set forth in said former patents,so that l am enabled to practically eliminateloss resulting from defective headers, thereby greatly decreasing the cost of production, and, furthermore, to produce radiator-headers which shall be stronger, as well as cheaper, than the radiators specifically set forth in my said former patents referred to. It is of course well understood that the metal now almost universally in use in the manufacture of articles of this character is steel ofthe grade commonly known as mild .or soft steel. .This metal is relatively ductile and is capable of being drawn and formed, within reasonable limits, into various classes of articles. This metal, however, does not tlow, as it is termed, perfectly in the drawing opera-tion. In drawing radiator-headers of this type there is, moreover, an unequal flow of the metal required. The result lis'that while it is perfectly practicablek to malte radiators in accordance with the principle set forth in either of my said former patents y'referred to the same radiators can be made not only stronger but cheaper by forming the headers from a plurality of sections forniedvfrom blanks of sheet metal and secured together by means of suitable water and steam tight joints.

In the accompanying drawings, forming part of this specication, Figure 1 is a side elevation of a radiator consisting of four of my novel sections, two of the pipes in the two sections toward the right and the corresponding connections being in section on the line 1 1 in Fig. 2; Fig. 2, an end elevation corresponding therewith, legs or bases by which the end sections-are supported being indicated by dotted lines in both figures; Fig. 3,

a plan View of one of my novel headers detached Fig. 4, a longitudinal section of a twopart header on the line 4 4in Fig. 3, thejoint being near the upper end of the header and the lap being upon the inner side; Fig. 5, a, similar view on the line 5 5 in Fig. 6, showing a two-part header in which the joint is near the base -of the header and is made smooth upon the inner side; Fig. 6, a trans- 6o verse section on the line 6 6 in Fig. 5; Fig. 7, a transverse sect-ion of a header consisting of two parts united by a central longitudinal joint; Fig. 8, a longitudinal section of a header formed in two parts united by a central transverse joint; Fig. 9, a detail View, partly in section, the pipes being broken away at the center, showing that the upper header lnay be dispensed with andthe upper ends of the pipes closed by caps and also 7o showing a form of lower header in which the collars which receive the pipes are invertedthat is, turned inward instead ofextending 'upward from the header; Fig. l0, a detail view showing in elevation, partially broken away, an inside lower header and also showing as a modification that the collars which receive the pipes may pass within the pipes instead of the pipes passing wit-hin the collars, as in the other form. Fig, 11 is a det-ail 8o view, on an enlarged scale, showing the construction of passages through the headers for tie-rods; and Fig. 12fis a longitudinal section of a header made in three parts, the sides, bottom, and top being made in one piece and the ends in separate pieces, which are secured thereto.

A denotes the pipes of my lnovel radiator; B, the headers; C, the tie-rods, and D legs or bases. the details of construction are not of the essence of my invention. I preferably, however, use pipes made from sheet metal, the edges of which are secured together by clencher-joints, as in Patents Nos.V 578,799, 578,800, and 578,80l,"granted to me March 16, 1897. The legs or bases are preferably made of wrought metal and of any desired shape or configuration. For the sake of clearness vI have indicated the bases by dotted lines loo The pipes are of wrought metal; but 9c only. It is simply essential, so far as my invention is concerned, that the bases and headers be independent of each other and that the bases be so constructed as to receive a header and hold it firmly. Ordinarily the two end sections only of a radiator will be seated in legs or bases. If the radiator is very long, however, one or more of the intermediate sections may rest in a leg or base. rIhe upper and lower headers may be the same, so far as the principle of my invention is concerned; but the exact shape of the headers is of course not of the essence of my invention. F01' example, in Figs. 1 and 2 I have shown the upper and lower headers as differing from each other in design, although the principle is the saine in both.

The essential feature of my novel header is that it consists of two or more sections formed from blanks of sheet metal, which are shaped by means of dies and are then secured together by suitable water and steam tight joints Il.

10 denotes collars formed upon the headers to receive the pipes, said collars being shown as formed upon the upper side of lower headers and the lower side of upper headers.

In Figs.1, 2, 3, and 4 I have illustrated a form of my invention iu which the headers each consist of an outer section (denoted by B) and an iunerorcollar section, (denoted by B2.) These sections are both drawn and pressed to shape from blanks of wrought metal, collars IO being formed on section B2 and said sections being united by a joint 11, the lap of which is on the inner side, so as to leave it smooth upon the outer side. In this form openings 1G and 23, the purposes of which will presently be explained, are made in section B.

In Figs. 5 and 6 I have illustrated a form which differs from the form just described in that the lap of joint Il is uponthe outerside, so as to leave it smooth upon the inner side, and also in that section B2 is made much larger than in the other form, openings 16 and 23, as well as the collars, being made in section B2, and section B being in general shape a curved strip, which forms the bottom and ends of the header, the top and sides thereof being formed principally from section B2.

In Fig. 7 I have illustrated a form in which the header is formed from two blanks of wrought met-al secured together by a central longitudinal joint 11. I have designated both sections of this form by B3 for the reason that the sections are counterparts. In Fig. 7 I have shown the lap of the joint as upon the inner side; but it will of course be understood that neither in this nor in any of the other forms is the special style of joint of the essence of the invention, it being simply necessary to unite the sections of the headers by strong and durable water and steam tight joints.

In Fig. 8 I have illustrated a form in which the header is formed from two sections, which invention applicable to steam-radiators, in l which the upper head is dispensed with and the upper ends of the pipes are closed by caps 12. I have also illustrated in this form as a modification aheader-in this instance a lower header-in which the collars 10 instead of extending upward from the header are inverted-z'. e., turned inward-said collars receiving the-pipes as inthe other form.

In Fig. 10 I have illustrated a form in which the collars extend upward from the header, as in Figs. 1 to 8, inclusive, but are made smaller and are adapted to pass within the pipes instead of receive the pipes within them, as in the other form.

So far as the general shape of the sections is concerned, Figs. 9 and l0 correspond with Figs. 1 to t, inclusive.

In Fig. l2 I have illustrated a form in which the header is formed from three blanks of wrought metal. The sides, bottom, and top are shown as formed from a single blank, (designated by 135,) the joint, which may be at either top or bottom, being in the present instance at the top. The ends (designated by B6) are secured to themain piece byjoints 11 in the same manner that the sections are secured together in the other forms.

The shape of the collars and pipes in crosssection is of course not of the essence of my invention.

In Fig. 3 I have illustrated collars made oval in cross-section to receive oval pipes, which I preferably arrange in each section, as shown in said iigure, although, as already intimated, these details of construction may be varied to suit the taste of the designer or the requirements of the trade.

E denotes a main steam or water pipe threaded at its end to engage a threaded sleeve 13. This sleeve is preferably made angular, as shown, to adapt it to receive a wrench, by which it may be held while pipe E is being turned to place. Sleeve 13 is secured to a radiator-section the lower header of which is especially adapted for use as a rst section of a radiator by having in its outer side an opening 14, surrounded by an outwardlyturned flange 15and by havinginitsinnerside an opening 16, surrounded by an outwardlyturned flange 17. Sleeve 13 is secured to a sleeve 18, which is itself provided with an outwardly-turned iiange 19, which engages the inner side of the section. Sleeve 18 is made just large enough to pass through opening 14 and flange 15, iiange 19 upon the inner side of said sleeve engaging the inner IOO IIO

side of the section, as is clearly shown in Fig. 1. It will of course be understood that these parts are rigidly secured together ordinarily vby the process ot sweating, so called.

The only difference between the first section and the intermediate sections is that the lower header of each of theintermediate sections has an opening 16l in each side, each opening being surrounded by a'flauge 17, and the only difference between the intermediate sections and the last section is that the lower header of the last section has an opening 16 in its inner side only. The mode in which the sections are connected together at the bottom, or at both bottom and top, it' preferred, is clearly illustrated in Fig. 1, in which figure I have shown the sections as connected together at top and bottom, as would ordinarily be the case in hot-water radiators, but would not ordinarily be necessary with steamradiators, it being, however, wholly immaterial, so far as my invention is concerned, whether the sections are connected at both top and bottom or only at the bottom and also whether or not upper headers are used at all.

20 denotes sleeves having at their inner ends iianges 21, adapted to engage the inner sides of the sections, the outer ends of each pair of sleeves 20 abutting against each other.

22 denotes a double taper sleeve lying within sleeves 20. It will be noted in Fig. 1 that sleeves 2O just pass closely through openings 16 and flanges 17, tianges 21 of said sleeves closely engaging the inner sides of the sections and that said sleeves also closely engage the double taper sleeve. After assembling the parts are rigidly secured together in any suitable manner, as by the process of sweatingj so called.

The tie-rods which connect the sections together to form completed radiators may be passed between the pipes or through the headers, as preferred. When they are passed through the headers, the headers are provided in both sides with countersunk openings 23.

24 denotes tubes which pass through the headers and are provided at each end with iianges 25, which engage the countersinks surrounding openings 23, as is clearly shown in Figa-11.

26 denotes tubes surrounding tubes 24, the

ends of which abut against and support the sides of the sections. It will be clearly understood from Fig. 11 that the flanges of tubes 24 render it impossible for outward expansion of the headers to take place under any circumstances and that tubes 26 prevent the possibility of collapsing of the headers.

27 (see Fig. 11 in connection with Fig. 12) denotes tubes the ends of which abut against contiguous sections and register with tubes 24, through which the tie-rods pass. These tubes, in connection with the tie-rods and nuts 28 thereon, hold the sections rigidly in place and make the radiator as a whole strong and rigid. This construction thus insures that the radiators While very much lighter than any radiators now in use having an equal amount of radiating-surface will also be very much stronger than other radiators and able to stand a much higher steam-pressure without danger of either collasping or bursting.

Having thus described my invention, I claim- 1. The radiator-header B having collars 10 and made up of complementary sections stamped from wrought metal and secured by joints 11. l

2. A radiator-header comprising a plurality of complementary sections stamped from wrought metal and secured together by steamtight joints, certain of said sections being shaped to form collars to receive pipes.

3. A radiator-header comprising a plurality of complementary sections stamped from wrought metal and secured together by steamtight joints, certain of said sections being shaped to form collars to receive pipes, and the side sections having openings countersunk externally to receive anges upon crosstubes 24, and said tubes 24 being surrounded by tubes 26 whose ends abut against the inner sides of the section, whereby outward enpansion and collapsing are prevented.

In testimony whereof I ai'iix my signature in presence of two witnesses.

FRANK A. WILMOT.

Witnesses:

A. M. WoosTER, N. ELwooD. 

